Improvement in presses for stencil-printing



vilhntrd Staten @met (attire.

Letters Patent No. 106,872, dated August-30, 187 i).

IMPROVEMENT IN PRESSES POR STENCIL-PRINTING.

The Scledule referred to in these Letters Patent and making part of the same.

To all` whom it muy concern Be it known that I, HENRY W. RUDOLF, of the city of Louisville, county of Jefferson, and State of Kentucky, have invented a new and useful Invention or Improvement in Crystalotyping, or Printing on Glass or other hard substances; and 1 do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the drawing and to the letters-of reference marked thereon.

The nature of my improvement consists more especially in the use ot' two plates or forms, made of paper, with only a part of the letters cut in either, so that, when the two combined are placed-in their proper p0- sitions on the press, they will form a perfect 'let-ter, the connecting points of the letters in the forms, where they are intended to match, being cut in the shape of ruiters Jand half circles, so as to overlap each other, in order to make the connections perfect, and thereby produ'celettcrs with perfectly smooth, sharp outlines when the coloring is applied, which is done with the ordinary printers type1'olle1, and with oil coloring.

My invention also further consists in the peculiar construction of the press, with adjustable hinges. for operating the above forms.

Y To enable others skilled in the art to make and use my improvement, I will proceed to describe its construction and operation "oy-reference to the drawing and to tle letters of reference markedthereon.

Figure 1 is a top lview of the press when open and ready for use.

Figure 2 is an end view of the same, partially open.

Figure 3 is a view of one hinge, complete.

Figure 4 is a view ofthe hinge, showing the slotted end, by means of which it is adjusted.

Figure 5 is an edge view of the slotted hinge Y.

Figure 6 is a view of the type-roller.

Having thus explained the different .figures in the drawing, 1 will proceed to describe them more .fully in detail by reference to iig. 1, in which- A is the bottom of the press-frame, which is made of wood, except the hinges.

His the raised center. t v

l P is the cushion, which is made of paper', and on which the article to be printed on is placed.l

O O O 0 are the small guides, by means of which the article to be printed on is kept iu its proper place,

so as to eiiect a perfect connection of the different parts of the letters, as made by the two forms R and S.

B B are the two leaves of the press, which are made to fold down and lit neatly over the raised center H, leaving some play, in order to adjust the forms properly, so as to make the connections in the-letters perfect and to which theiorms are attached.

G G G G and N N N N are the diierent parts of the adjustable hinges, which are made of iron.

F F F F are set-screws in the hinges, working on centers, for the purpose of adjusting thefleavcs B B, in order to make the forms index correct-ly, said screws being prevented from turning by jam-nuts.

R and S are the stencil-plates or forms, which are made of paper, with only part ofthe letters cnt in either, shown by the black lines in one and by the white spaces in the other, the connecting parts ofthe letters in eaclrform being out into miters and haltcircles, as shown by V, J, T, and U, in the plates It and S, in order that the impressions may overlap each other, preventing imperfect connection, and by means of which letters with perfectly smooth, sharp outlinesare produced.

Having fully describedV thc construction of my improvement, its operation is simply that of placing the article to be printed on on the cushion I P, close up against the guides O, after which close down one ot' the lea've's B B, containing the form on it, and apply .the coloring with the roller L, the saine asin printing,`

after which raise the tirst lcat' from the workl and close down the other on it, and use the same process inapplying the color, and the process is completed; therefore- That I claim as my invention or improvement, and desire to secnreby Letters latent, is-

1. The iblding-press A, with the raised center or bed H, and the guiding-stops O O O O, the paper cushions l I), and the adjustable hinges N G, with their slots E E E E and set-screws F F F F.

2. lhe paper stencil-plates o1` forms It and S, with only a port-ion of each letter cut iu them. Y

- HENRY NV. RUDOLF.

Witnesses:

` RUDOLPH FINZER,

NICHOLAS FI'NZER. 

